Il6 UNIVERSITY OF MISSOURI STUDIES [258 



93. TRILLIUM L. Wake Robin. 



257. T. erectum L. Birthroot. 



Ravine south of Hinkson creek southwest of Columbia; 

 station apparently destroyed recently. 



Nova Scotia to Manitoba; North Carolina to Mis- 

 souri. 



258. T. sessile L. Black Susan. 

 Very common in woods and thickets. 



Pennsylvania to Michigan and Minnesota; Florida to 

 Arkansas. 



94. SMIL AX Tourn. \NEMEXIA Raf.] Green- 



brier. 



259. S. herbacea L. [A^. herbacea (L.) Small]. Carrion 

 flower. 



Thickets on rich hillsides. 



New Brunswick to Manitoba; Florida to Louisiana. 



260. S. pulvemlenta Michx. \S. herbacea pulverulenta 

 (Michx.) Gray: A^. pulverulenta (Michx.) Small]. 



Frequent in open copses and bottom lands. 



Ontario to Wisconsin; North Carolina to Missouri. 



261. S. ecirrhata (Engelm.) Watson. Upright smilax. 

 Deep woods along Grindstone creek; rare. 

 Michigan to Minnesota; Virginia to Missouri. 



262. S. rotundifolia L. Catbrier. 

 Copses and hawthorn glades; frequent. 

 Ontario to Minnesota; Florida to Texas. 



263. S. Mspida Muhl. Greenbrier. 

 Thickets and bottoms; common. 



, Ontario to Minnesota and South Dakota; Florida to 

 Texas. 



Family i8. AMARYLLIDACEAE Lindl. Amaryllis family. 



95. HYPOXIS L. Star grass. 



264. H. erecta L. \^H. hirsuta (L.) Coville]. 



